1.后台

@RequestMapping("/toWaitReferPage")
 public String toWaitReferPage(HttpServletRequest request, Integer pageType){
     request.setAttribute("pageType",pageType);
     return "waitrefer/waitReferPage";
 }

3.页面取值

<p th:text="#{pageType}">default pageType</p>

4.js中取值

<script th:inline="javascript">
    var message = [[${pageType}]];
    console.log(pageType);
</script>